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IOVA · ARGX in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

IOVAARGX
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • IOVA
  • ARGX
0102030202120222023202420252026
Holders and value by quarter
QuarterIOVAARGX
Q3 20209 holders, $822m8 holders, $3.6bn
Q4 20209 holders, $1.8bn7 holders, $4.1bn
Q1 20218 holders, $1.2bn8 holders, $4.1bn
Q2 20216 holders, $917m9 holders, $4.6bn
Q3 20217 holders, $753m8 holders, $4.5bn
Q4 20218 holders, $517m9 holders, $5.3bn
Q1 20228 holders, $423m8 holders, $5.3bn
Q2 20227 holders, $121m13 holders, $6.5bn
Q3 20228 holders, $100m14 holders, $5.3bn
Q4 20226 holders, $43m13 holders, $5.5bn
Q1 20236 holders, $102m13 holders, $5.9bn
Q2 20234 holders, $102m18 holders, $6.6bn
Q3 20234 holders, $35m21 holders, $8.7bn
Q4 20237 holders, $105m17 holders, $6.3bn
Q1 20245 holders, $154m13 holders, $6.8bn
Q2 20244 holders, $98m14 holders, $7.9bn
Q3 20244 holders, $93m13 holders, $10.7bn
Q4 20243 holders, $52m14 holders, $12.3bn
Q1 20253 holders, $19m17 holders, $11.8bn
Q2 20251 holders, $45k18 holders, $10.8bn
Q3 20251 holders, $56k16 holders, $13.8bn
Q4 20251 holders, $71k16 holders, $14.8bn
Q1 20262 holders, $1.3m11 holders, $12.3bn
Q2 20261 holders, $79m14 holders, $15.0bn
IOVA

Iovance Biotherapeutics Inc

Holders
1
Reported value
$56k
Buyers
0
Sellers
0

Breadth 0 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP
ARGX

Argenx Se

Holders
16
Reported value
$13.8bn
Buyers
10
Sellers
7

Breadth +3 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP

Who holds both, Q3 2025

Among the 17 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Both (0)

No tracked manager lists every one of them.

Only IOVA (1)

Farallon Capital Management LLC

Only ARGX (16)

Acadian Asset Management LLC, Artisan Partners LP, Capital World Investors, Citadel Advisors LLC, D. E. Shaw & Co., Fidelity (FMR LLC), Hudson Bay Capital Management LP, Janus Henderson Group Ltd, Millennium Management LLC, Moore Capital Management LP, T. Rowe Price Associates Inc, Two Sigma Advisers LP, Two Sigma Investments LP, Voloridge Investment Management LLC, Wellington Management Group LLP, Woodline Partners LP

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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